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Technical Articles ID: KB74299
Last Modified: 12/23/2021

Environment

McAfee File and Removable Media Protection (FRP) 5.x

Adobe Acrobat Reader 10.x and later

For details of FRP supported environments, see KB81149 - Supported platforms for File and Removable Media Protection.

Problem

You see the following error when you try to open FRP-encrypted PDF files that use Adobe Reader 10.x and later:

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Cause

Acrobat Reader 10.x includes a new Protected Mode feature, enabled by default, to prevent security vulnerabilities.

For more information about Adobe Acrobat Reader Protected Mode, see http://kb2.adobe.com/cps/860/cpsid_86063.html.

Solution

Open a support case with Adobe at http://www.adobe.com and request an investigation.

In the interim, implement the following workaround.

Workaround

Disable Protected Mode in Adobe Reader 11:

Click Edit, Preferences, Security (Enhanced).
In the right pane, deselect Enable Protected Mode At startup.
Close and reopen Adobe Acrobat Reader.

Disable Protected Mode in Adobe Reader 10:

Click Edit, Preferences, General.
In the left pane, deselect Enable Protected Mode At Startup.
Close and reopen Adobe Acrobat Reader.

NOTE:

Contact Adobe if you can't implement the changes above.
Do not disable Protected Mode in Adobe Acrobat Reader when you try to open an encrypted PDF file from CD/DVD.

Affected Products

File and Removable Media Protection 5.4.x
File and Removable Media Protection 5.3.x
File and Removable Media Protection 5.2.x
File and Removable Media Protection 5.1.x
File and Removable Media Protection 5.0.x (EOL)
Known Issue/Product Defect

Languages:

This article is available in the following languages:

English United States
Spanish Spain
French
Italian
Portuguese Brasileiro

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